When scientists talk about the cryosphere, they mean the places on Earth where water is in its solid form, frozen into ice or snow. Read more ...

Service Interruption

On Monday, 11 July from 3:00 p.m. through Wednesday, 13 July until 5:00 p.m. (USA Mountain Time), NSIDC data distribution, services, and Web site will be unavailable to accommodate a major upgrade to our data center. We apologize for any inconvenience this may cause you.
Need to talk to us? You can always contact our friendly User Services Office at nsidc@nsidc.org or + 1 303.492.6199.

A-CAP/G-CAP Map Servers

A-CAP and G-CAP are geo-visualization and data download tools developed at NSIDC as part of the NASA MEaSUREs program. The Antarctic Cryospheric Access Portal (A-CAP) will provide access to Antarctic data and parameters including glaciology, ice core data, snow accumulation, satellite imagery, digital elevation models (DEMs), sea ice concentration, and many other cryosphere-related measurements. A-CAP also provides access to data from the Antarctic Glaciological Data Center (AGDC), and NSF-funded archive for Antarctic data at NSIDC. For more information, see About A-CAP.

The Greenland Cryospheric Access Portal (G-CAP), currently in development, will provide access to data from the Greenland Ice Sheet, in particular, ice velocity data covering the entire ice sheet.